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what is integers
An integer is a number that can be written without a fractional or decimal component. For example, 21, 4, and ?2048 are integers; 9.75, 5½, and ?2 are not integers. The set of integers is a subset of the real numbers, and consists of the natural numbers (0, 1, 2, 3, ...) and the negatives of the non-zero natural numbers (?1, ?2, ?3, ...).


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